What is the meaning of the LED on the SFP and the Ethernet side?


On the side of the SFP are three LED:


SFP ACT: SFP Activity ( data is transmitted).

SFP LINK: Fiber is attached.



Some yellobriks have ethernet RJ-45 Sockets:
















ETH Link (green) | ETH Activity (yellow) || ETH Link (green) | ETH Activity (yellow)



This is valid for the devices Oxx15x0 (e.g. OET1510).